Arduino Ethernet IP address

I am in a group, and we are working on a project where we have selected the Arduino Ethernet microcontroller and are planning on connecting to a router for use of the internet. I was wondering how to set an ip address up for the Arduino Ethernet so it can be identified on the network.

I was wondering how to set an ip address up for the Arduino Ethernet so it can be identified on the network.

That depends on your router. Most have some sort of web interface that lets you configure them, by pointing your browser at the router's address (198.162.0.1).

Look through the Ethernet library examples as that information is all contained and demonstrated within.